19940347

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2137}}^1$

素因数の和:2218

約数の個数: 16

約数和(自身を含む): 24082432

約数和(自身を除く): 4142085

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2137, 9331, 14959, 66247, 91891, 463729, 643237, 2848621, 19940347]

約数ペア:

[(1, 19940347), (7, 2848621), (31, 643237), (43, 463729), (217, 91891), (301, 66247), (1333, 14959), (2137, 9331)]